Snapshot of the WebSocket client's backpressure state. Indicates whether the outgoing buffer is saturated and the current buffer levels.
Current bytes buffered across outgoing queue + pending sends.
High-water mark in bytes; sending pauses when exceeded.
Low-water mark in bytes; drain() resolves when bufferedBytes falls below this.
True when bufferedBytes >= highWaterMark.
Snapshot of the WebSocket client's backpressure state. Indicates whether the outgoing buffer is saturated and the current buffer levels.